Planoqraph co



, H. ZOELLY.

STEAM TURBINE PLANT WITH HORIZONTAL AXIS.

APPLICATION FILED 6.9, 1911.

1,309,993. Patented July 15, 1919.

ml: COLUMQIA HANOOIAPH cm, WASHINGTON, n. C.

HEINRICH ZOELLY, 0F ZURICH, SWITZERLAND.

STEAM-TURBINE PLANT WITH HORIZONTAL AXIS.

- Specification of Letters Patent.

Patented July 15, 1919.

Application filed August 9, 1917. Serial No. 185,265.

To all whom it may concern:

Be it known that I, HEINRICH ZOELLY, a citizen of the Republic of Switzerland, residing at Zurich, Switzerland, have invented certain new and useful Improvements in Steam-Turbine Plants with Horizontal Axis; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a part of this specification.

The invention has reference to steam turbine plants with horizontal axis, in which a steam turbine and a surface condenser are built together in such a manner, that the steam passes from the last runner wheel directly into the condenser. According to the invention theturbine is arranged in an overhanging manner on the condenser casing only the latter being provided with feet.

The arrangement of steam turbine plants with horizontal axis, in which a steam turbine and a surface condenser are directly built together in order that the steam, after leaving the last runner wheel, passes into the condenser without being obliged to eventually go through an intermediate conduit, thus simplifying the construction and avoiding pressure losses, is well known. In such plants, however, the turbine as well as the condenser casing are provided with feet by means of which they rest on the founda tion. This arrangement has the drawback, that a common sole-plate will be necessary to insure the correct alinement of the turbine and condenser, which sole-plate must extend from the condenser to underneath the turbine. This necessitates a relatively large and therefore expensive foundation and a heavy sole-plate. Moreover, this arrangement has the great disadvantage, that, on starting the plant, the axis of the turbine casing is raised higher than that of the condenser on account of the great heating of the turbine casing, whereby vibration may occur as also the fouling of the rotating parts against the fixed ones. These drawbacks are avoided by the object of the present invention.

The drawing shows a constructional example of the invention.

chambers of the Figure 1 is a side elevation, partly in vertical section,

Fig. 2is a front view of a steam turbine plant, according to the invention, with a dynamo connected thereto.

Fig. 3 is a vertical longitudinal section, showing the shaft bearing within the annular condenser in elevation.

1 represents the casing of the surface condenser; 2 and 3 are covers for the water latter. Into these chambers the cooling water flows through the pipe 4 and leaves the same through the pipe 5. Owing to the-condenser being subdivided in a horizontal plane, the lower and upper halves are in communication by means of connecting pipes 6 and 7. On the casing are provided feet 8 and 9, by means of which the condenser rests on the foundation. The generator-shaft 10 is supported in bearings 12 and 13 and is rigidly coupled at 14 to the shaft 15 of the turbine. The steam turbine 16 is a multistage one. Its casing, together with the guide wheels 17 and the distributing device 18 are fixed by means of screws to the front casing wall of the condenser and is not provided with any feet. The inner casing wall of the condenser forms a cavity wherein the turbine bearing 19 is arranged as shown Fig. 2) and of which Fig. 1 shows the'upper half. The. steam enters the turbine 16 through the pipe 21 and the distributing device 18. After passing the last wheel, the steam flows in the shape of a ring into the condenser and around the cooling pipes 22 of the latter. The condensation water flows out through the branch 23, the circular baffle 24 causing the steam to cross the tubes 22 that are arranged parallel to the axis of the condenser and of the turbine. The feet 8 and 9 of the condenser and the bearings 12 and 13 of the generator have the same height up to the center of the shaft. During the working they get heated approximately to the same temperature and therefore will expand to about the same extent. In this manner the compound shaft 10, 15 is raised throughout its whole length to the same extent. Owing to the arrangement described, the permanent central position of the fixed part of the turbine relatively to the shaft is secured.

What I claim is:

1. The combination with an annular surface condenser; of a horizontal elastic fluid turbine supported; within the annulus of said condenser and projecting to one side thereof, and feet for the condenser, said feet supporting the condenser and therethrough the turbine, and said turbine discharging, directly into the condenser.

52. The combination with an annular surface condenser having its condensing surfaces parallel to its axis of a circular baflie within the condenser for causing steam to traverse said surfaces, and? an axial flow turbine supported from one side of the con denser and discharging horizontally directly into the condenser.

3. The combination of an elastic fluid horizontal turbine with a surface condenser and a generator; said condenser being arranged around the rotor shaft between the generator and the turbine, feet common to the turbine and surface condenser, the turbine casing being bolted to. and projecting from the condenser casing, the turbine, the surface condenser and the generator being arranged co-axially. V

4. The combination of an elastic fluid horizontal turbine with a surface condenser and a generator, said condenser being arranged around the rotor shaft between the generator and the turbine, feet supporting the surface condenser, the turbine casing being bolted to and projecting from the condenser casing; the turbine, the surface condenser and the generator being arranged coaxially, a shaft common to the generator and turbine and bearings therefor, all arranged on the generator side of the condenser.

5. The combination with a completely annular condenser having a horizontal axis, and a horizontal steam turbine supported by the condenser co-axial therewith secured at one end to the side thereof and the other end of the turbine being unsupported.

6. In combination, an annular surface condenser and a steam turbine connected to and supported by the condenser at the inner periphery of the annulus and projecting laterally therefrom, said turbine discharging about its Whole circumference directly into the condenser at the lesser diameter thereof.

7 In combination, an annular condenser divided substantially horizontally into two semi-annular parts, a steam turbine connected to and projecting from the condenser and co-axial therewith and directly discharging thereinto; a turbine shaft bearing supported by the condenser within the annulus, and feet on the condenser forming a support for both condenser and turbine.

'8. In combination, an annular condenser divided horizontally into two semi-annular sections, feet on the lower section extending substantially from the upper edge of said section, a steam turbine directly discharging into the condenser, connected co-axially to said condenser and projecting from one side thereof.

9. In combination, an annular condenser divided horizontally into two semi-annular sections, feet on the lower section extending substantially from the upper edge of said section, a steam turbine directly discharging into the condenser, connected co-axially to said condenser and projecting from one side thereof, and a turbine shaft bearing supported co-axially within the annulus of the condenser.

In testimony that I claim the foregoing as my invention, I have signed my name.

' HEINRICH ZOELLY.

flopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

